Schedule: a typical Wednesday (the flights of Jul 29, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.
SOUTHWEST · FLIGHT WN 2934
SCHEDULED · TYPICAL SCHEDULE
Wednesday, September 30 Today
WN 2934 · LAS → SFO
departs 9:15 AM PT · arrives 10:55 AM PT
Forecast issued Wed 4:00 AM ET · 8h before departure
Watch this flight
Other days
Today
Thu 10/1 41%
Fri 10/2 20%
Sun 10/4 23%
Mon 10/5 23%
Tue 10/6 14%
Odds over time
Arrive at SFO more than 15 minutes late?
21%
chance · ±4 pts
−1 pt · 24h
HOW SURE WE ARE
Good. The odds now lean mostly on firmed-up weather forecasts.
Arrive 15+ late
21%
Leave 15+ late
22%
Arrive 1h+ late
6%
Cancelled
<1%
WEATHER FORECASTS
LIVE
IN THE AIR
0%
15%
30%
45%
60%
2.9d
2d
1d
12h
Now
6h
Departs
Lands
Arrive at SFO more than 15 minutes late?
Calm-weather odds: 23% · changed −1 pt in 24h
−1 pt
21%
Yes 21%
No 79%
Leave LAS more than 15 minutes late?
Calm-weather odds: 22% · changed −7 pts in 24h
−7 pts
22%
Yes 22%
No 78%
Arrive at SFO more than an hour late?
Calm-weather odds: 7% · changed −2 pts in 24h
−2 pts
6%
Yes 6%
No 94%
Cancelled?
Calm-weather odds: <1% · changed +0 pts in 24h
+0 pts
<1%
Yes <1%
No 99%
How late will it get to SFO?
On time or early
79%
15–30 min late
<1%
30 min–1 hour late
15%
1–2 hours late
4%
Over 2 hours late
1%
Cancelled
<1%
Gate arrival compared with the scheduled arrival. The ranges add up to 100%.
What’s moving the odds
↑
Arrivals into SFO at that hour are often late
↑
This flight has been late 52% of the time recently
↑
SFO is prone to delays
↓
Cloud base down to 1,300 ft forecast at SFO that day
↓
Wednesdays in September are usually quieter than average
Weather at each end
LAS (origin)
Gusts 16 kt Ceiling none (clear) Visibility 10+ mi Precip none
SFO (destination)
Gusts 13 kt Ceiling 1,300 ft Visibility 7 mi Precip none
How this resolves
Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.
Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.